underground cave 3d model

“Create a highly detailed 3D model of a massive spiral mountain that contains a dark, natural cave labyrinth inside. The mountain is round and shaped like a giant rocky dome, similar to a snail shell when viewed from above. The main path is a wide spiral tunnel that winds upward from the bottom entrance all the way to the summit. Inside the mountain, the tunnel system should feel like a deep, ancient cavern: rough stone walls, uneven floors, stalactites, stalagmites, cracks, moisture, and darkness. Between each spiral section, add complex maze-like side tunnels, dead ends, small chambers, collapsed passages, and natural rock formations. Make the entire dungeon structure multi-level, as if the mountain contains Floor 1 → Floor 2 → Floor 3 → Apex Floor. The top of the spiral emerges at an open peak chamber with light shining from above. The outside of the mountain should look solid, rugged, and natural, with a single cave entrance at the base. The model should be isometric-friendly, game-ready, and readable as